I just updated my Postcards to V2.3 and also updated my LG290P to v6. I am running these in a base & rover setup with LoRa serial modems connecting the two. I am seeing the following issues:

Base:
Repeated "Delineator not found" message (every 1sec or less) for the first 20?min. I tried connecting again and now the message isn't showing up.
Can't set the Radio baud to 57600 - when I try it says its out of range. So its stuck right now at 460800
SIV still reports 0 even though it surveys in

Rover:
No delineator message
Also can't set the Radio baud to 57600
SIV still reports 0 even though I am getting an accuracy number